Building water security for our region’s future
Historic document library
This page lists key documents available for download. Older documents are provided as background, and may contain out of date information.
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Alternative options
This review by Tasman District Council’s Engineering Services Manager Richard Kirby considers all the reasonable alternatives to a dam in the Lee Valley for solving Nelson Tasman’s summer water shortages.
Water Augmentation Project – Options Assessment – 27 July 2017
Design Report
Prepared by Tonkin & Taylor, this report summarises design considerations including river diversion, geotechnical and seismic considerations, fish pass design and more.
Phase 3 - Summary - Design Report July 2014
Stage 3 Design Report Appendix A - Drawings
Stage 3 Design Report Appendix B, C, D, E, G
Stage 3 Design Report Appendix F - T+T Geotechnical Investigation Report Volume 1
Stage 3 Design Report Appendix F - T+T Geotechnical Investigation Report Volume 2
Civil Works and Dam Specification
LiDAR and Flow Reports
5 Sept 2017 Seismic Risk Review Ian Walsh
Seismic Hazard Assessment GNS August 2017
Resource Consent Documents
The resource consents have been granted subject to conditions.
TDC Resource Consents
Environment Court Decision and Resource Consents
Water Management Provisions in the TRMP
Changes to the Tasman Resource Management Plan related to minimum river flow for the Waimea River and resulting water rationing. There are also transitional provisions.
Read more about Waimea Plains Water Management on tasman.govt.nz:
Changes 45 to 48: Waimea Water Management and Augmentation (Lee Dam)
Changes 54 to 56: Waimea Water Management (Security of Supply)
Proposed Change 63: Waimea Water Transition Management
Long Term Plan 2018-2028
Funding for the Waimea Community Dam was included in the Tasman District Council Long Term Plan 2015-2025 and it continued into the current Long Term Plan 2018-2028.
View the Long Term Plan 2018-2028.
Economic Analyses
Updated Economic Cost of the No-Dam Alternative (August 2018) – Northington Partners 2018
NZIER Waimea Dam Update report July 2017
Economic Cost of the No-Dam Alternative (July 2017) — Northington Partners 2017
Waimea Dam Economic Assessment Report — NZIER for the Nelson Economic Development Agency, 2014
How to Pay for a Dam — NZIER for the Tasman District Council, 2014
Full Waimea Water Augmentation Committee Document Library
The full Waimea Water Augmentation Committee Document Library is available on the Tasman District Council website.
Funding application
This application was successfully made by Tasman District Council, supported by co-funders Waimea Irrigators Ltd and Crown Irrigation Investments Ltd, to the Ministry for the Environment’s Freshwater Improvement Fund.
Tasman District Council - Freshwater Improvement Fund application Part 1
Tasman District Council - Freshwater Improvement Fund application Part 2
Tasman District Council - Freshwater Improvement Fund application additional information July 2017
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